21 citations · 48 across the 6 of their papers we have counts for
6 papers
Sudden jumps and plateaus in the quench dynamics of a Bloch state
J. M. Zhang, Hua-Tong Yang
We take a one-dimensional tight binding chain with periodic boundary condition and put a particle in an arbitrary Bloch state, then quench it by suddenly changing the potential of…
Cusps in the quench dynamics of a Bloch state
J. M. Zhang, Hua-Tong Yang
We report some nonsmooth dynamics of a Bloch state in a one-dimensional tight binding model with the periodic boundary condition. After a sudden change of the potential of an arbit…
Potential-driven eddy current in rippled graphene nanoribbons
Hua-Tong Yang
It is well known that an eddy current will be induced in a conductor subject to a varying magnetic field. Here we propose another mechanism of generating nano-scale eddy current in…
Shift of Dirac points and strain induced pseudo-magnetic field in graphene
Hua-Tong Yang
We propose that the strain induced effective pseudo-magnetic field in graphene can also be explained by a curl movement of the Dirac points, if the Dirac points can be regarded as…
Some exact identities connecting one- and two-particle Green's functions in spin-orbit coupling systems
Hua-Tong Yang
Some exact identities connecting the one- and two-particle Green's functions in the presence of spin-orbit coupling have been derived. These identities is similar to the usual Ward…
Description of spin transport and precession in spin-orbit coupling systems and a general equation of continuity
Hua-Tong Yang, Chengshi Liu
By generalizing the usual current density to a matrix with respect to spin variables, a general equation of continuity satisfied by the density matrix and current density matrix ha…